Ge Microwave Mounting Bolt Size. I know the bolts are normally about 3 inches long, but does anyone know what thread size/type i need? I was hoping i could pick up a couple simple bolts from lowes as the mounting kit which was not much more than a few screws and a.

Pick the bolt that extends beyond top of the bottom shelf by 3/ 16 (4 mm) to ¾ (19 mm).this will be the bolt length needed for your cabinets. The available clear wall space to mount (where old microwave was installed) is 30w x 15h (the wall has ceramic tile behind range up to. Answer julie, the manufacturer does not offer longer mounting screws.